Amphiphilic polymer ligandHydrophobicehydrophilic balanceCatalyst recycleCrosslinked polymers containing chiral N-sulfonylated diamine (TsDPEN) structure were synthesized by radical polymerization of chiral N~1-(4-vinylbenzenesulfonyl)-1,2-diphenylethylene-1,2-diamine, divinylbenzene and achiral vinyl monomer....
Stabilization of the favorable transition state by a CH/π interaction between the η~6-p-cymene ligand and the substrate molecule is explored in depth to show that both C(sp~2)H/π is more probable than C(sp ~3)H/π in this molecular system. Finally, transition state geometries for ...
same ligand sy stem w ith v arious m etal c enters rR h .Ir and Ru) and different counteranions were highly effec. tive cataly st s fo r th e asymmetric h ydrogenat ion of qu i— no line deriv atives and prochiral imine comp ound s w ith ...
same ligand sy stem w ith v arious m etal c enters rR h .Ir and Ru) and different counteranions were highly effec. tive cataly st s fo r th e asymmetric h ydrogenat ion of qu i— no line deriv atives and prochiral imine comp ound s w ith ...
Iridiumα-KetophosphonatesWaterA water compatible imidazolium ion tethered TsDPEN ligand (ITT) is applied for the title reaction using sodium formate as hydrogen source.doi:10.1016/j.jorganchem.2016.03.010Mengxia SunJoann CampbellGuowei KangHuigang Wang...
Six novel chiral rare-earth-metalcomplexes bearing the phenoxy-functionalizedTsDPEN ligand H 3 L 1 (H 3 L 1 = N -((1 R ,2 R )-2-((3,5-di- tert -butyl-2-hydroxybenzyl)-amino)-1,2-diphenylethyl)-4-methylbenzenesulfonamide)were synthesized successfully and well characterized. The solid...
Polymer-immobilized chiral catalystCyclic sulfonimineAmphiphilic polymer ligandHydrophobic-hydrophilic balanceCatalyst recycleThe polymer-immobilized chiral N-sulfonylated diamine ligands were prepared.The polymeric chiral Ru complexes were used as catalyst for asymmetric transfer hydrogenation.Hydrophobic polymeric ...
In addition, the chiral ligand was easily recycled several times and this catalyst was especially suitable for the preparation of chiral tetrahydronaphthalen-1-ol and 2,3-dihydro-1H-inden-1-ol (up to 98% conversion with 99% ee). The latter product can be used as the key intermediate for ...
Wu et al.The synthesis of a new nitrogen joined N-PEG-TsDPENligand and its application in asymmetric transfer hydrogenation of ketones in neat water.Journal of Organometallic Chemistry. 2011The synthesis of a new nitrogen joined N-PEG-TsDPEN ligand and its application in asymmetric transfer ...
In this thesis, an imidazolium ion tethered N-(p-toluenesulfonyl)-1,2- diphenylethylenediamine (TsDPEN) has been synthesized readily and used as a water-soluble ligand for [Cp*RhCl]catalyzed asymmetric transfer hydrogenation (ATH) of aromatic ketones in water. This process provided the secondary ...